TROUBLESHOOTING FMI (Failure Mode Identifier): Identification of parameter value MACK FAULT CODE IDENTIFICATION TABLE The FMI specifically defines the fault. Example: FMI 7 indicates that the mechanical system is not responding or may be out of adjustment. Definitions MID (Message Identification Description): Identification of ECU PID (Parameter Identification Description): MACK identification of parameter value The MID identifies which ECU is broadcasting the code. PPID (Proprietary Parameter Identification Description): MACK unique identification of parameter value Example: MID 128 indicates that the code is being broadcasted by the Engine Management System (EMS) Module.
PSID (Proprietary Subsystem Identification Description): MACK unique identification of component SID (Subsystem Identification Description): Identification of component The SID describes the fault code. Example: SID 1 represents a failure with the Fuel Injector Unit #1. The above fault code structure allows the technician to determine the exact cause of the fault. Always use the entire fault code (all 3 components) when fault tracing.
Page 14 DESCRIPTION AND OPERATION Emissions Fault Code Component/Function "FMI Codes" MID 128 PID 26 Fan Speed Error 3 MID 128 PID 45 Inlet Air Heater Status 3, 4, 5 MID 128 PID 81 Particulate Trap Differential Pressure Sensor 0, 2, 3, 4, 5, 7, 12 MID 128 PID 84 Road Speed 9 MID 128 PID 85 Cruise Control Status 9 MID 128 PID 91 Percent Accelerator Pedal Position 9 MID 128 PID 94 Fuel Pressure (FP) Sensor 1, 3, 5, 7 MID 128 PID 97 Water in Fuel Sensor 3, 4, 5, 14 MID 128 PID 98 Engine Oil Level 1, 4, 5 MID 128 PID 100 Engine Oil Pressure 1, 3, 5 MID 128 PID 102 Boost Air Pressure Sensor 0, 1, 2, 3, 5, 11 MID 128 PID 103 Turbo Speed Sensor 0, 1, 9 MID 128 PID 105 Boost Temperature Sensor 0, 1, 2, 4, 5, 10 MID 128 PID 108 Ambient Pressure Sensor 2, 3, 4 MID 128 PID 110 Engine Coolant Temperature (ECT) Sensor 0, 2, 4, 5, 10 MID 128 PID 111 Coolant Level 1, 3, 4, 5 MID 128 PID 153 Crankcase Pressure 0, 1, 2, 3, 5 MID 128 PID 171 Ambient Air Temperature Status 9 MID 128 PID 173 Exhaust Gas Temperature 0, 2, 3, 4, 5, 10 MID 128 PID 175 Engine Oil Temperature 0, 2, 4, 5